On January 11, 1787, the English astronomer Sir William Herschel discovered two moons at Uranus! Oberon and Titania were the first two Uranian moons ever discovered. The finding came just six years ...
Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a ...
That's the titanosaur, one of the largest land animals to ever exist, dwarfing nearly everything around it. Roaming the planet during the Late Cretaceous period — approximately 100 million years ago — ...
Planet X, also called Planet Nine, is a hypothetical planetary body seven times the mass of Earth lurking behind Pluto. If ...
Throughout January, four planets will line up in the night sky and be simultaneously visible to the naked eye in the Northern Hemisphere. Our celestial neighbours Venus and Mars as well as big ...
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Learn about the size, temperature, and colour of each planet, and discover why Pluto is no longer considered a planet.